Brush reciprocating mechanism for combing machines



March 26, 1957 w. CORBETT BRUSH RECIFROCATING MECHANISM FOR COMBINGMACHINES Filed June 14, 1954 3 Sheets-Sheet 1 INVENTOR. LAWRENCE w.CORBETT.

ATT'Y.

March 26, 1957 L. w. CORBETT BRUSH RECIPROCATING MECHANISM FOR COMBINGMACHINES Filed June 14, 1954 S Sheets-Sheet 2 INVENTOR.

LAWRENCE W. CORBETT.

Fig.10

I I I ,f I I I I I March 26, 1957 L. w. CORBETT BRUSH RECIPROCATINGMECHANISM FOR COMBING MACHINEIS Filed June 14, 1954 3 Shets-Sheet 3 n maMR mm w E C N .r R W A l- BRUSH RECIPROCATING MECHANISM FOR COMBINGMACHINES Lawrence W. Corbett, Worcester, Mass, assignor to James Smith &Son, Inc., Worcester, Mass, a corporation of Massachusetts ApplicationJune 14, 1954, Serial No. 436,514

13 Claims. (Cl. 19-115) This invention relates to new and improved brushreciprocating mechanisms for combing machines in the textile arts, andthe principal object of the invention resides in the provision of such amechanism which is capable of greatly increased rapidity ofreciprocation of the brush, particularly by the use of a balancingslide, so that the inertias involved in the reciprocatory motions aresmoothed and balance out in such a way as to allow great increase in thespeed of reciprocation and reversal of the brush and consequent similarincrease in the speed of operation of the combing machine to which it isapplied.

Other objects and advantages of the invention include the provision of aslide operated by a crank for reciprocating the brush holder and brush,said crank also operating at the same time a balancing slide locatedapproximately at light angles to the path of the brush holder slide andbeing arranged so that it is approximately midway of its stroke at theends of the stroke of the brush holder slide, so that the moments arebalanced; the provision of a combining machine brush mechanism as abovedescribed including the provision of weights in the form ofcounterbalances located diametrically opposite the operative position ofsaid weights and the amount thereof being such as to balance the slidesin a dynamic manner so as to carry out the function of smoothness andspeed of operation, particularly at the points of reversal of the brush.

Other objects of the invention include the provision of a novellubricating system and including a pump operated by the motion of thebrush holder slide, and the provision of new and improved adjustablebrush-holding means.

Other objects and advantages of the invention will ap pear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 isa view in elevation of mechanism according to the present invention,parts being broken away and in section;

Fig. 2 is a section on line 2-2 of Fig. l;

' Fig. 3 is an enlarged view illustrating the crank and thecounterweights therefor;

Fig. 4 is an end view, looking in the direction of arrow 4 in Fig. 3;

Fig. 5 is an enlarged view in elevation of the new and improved brushslide and securing means, parts being broken away and in section;

Fig. 6 is an enlarged section on line 66 of Fig. 5 showing how the brushis connected to the brush-holder;

Fig. 7 is a top plan view of the brush slide, looking in the directionof arrow 7 in Fig. 5;

Fig.8 is an enlarge-d section on line 8--8 of Fig. 6;

Fig. 9 illustrates the brush and its connecting means;

[Fig 10 is a plan view of the brush, looking in the direction of arrow10 in Fig. 9;

Fig. 11 is a view in elevation, looking in the direction of arrow 11--11in Fig. 2 and showing the mechanism of Fig. 1 at the opposite sidethereof;

atent F id Fig. 12 is an enlarged view of the pump actuating mechanism,looking in the direction of arrow 12 in Fig. 2;

Fig. 13 is an edge view of a part thereof, looking in the direction ofarrow 13 in Fig. 12;

Fig. 14 is a plan view of the pump parts being in section, looking inthe direction of arrow 14 in Fig. 1;

Figs. 15 and 16 are sections through the pump taken on the respectivelines in Fig. 14; and

Fig. 17 is a diagrammatic view illustrating the theory and operation ofthe present invention and illustrating the manner in which the brush maybe made to recipro cate at a much faster rate of speed than heretofore.

in combing machines in the textile arts, the speed of operation andproductive capacity is limited by the speed of reciprocation of thebrushes which apply the material to be combed to the pins, and in thisrespect attention is directed to United States Patent No. 2,570,767issued October 9, 195 1, illustrating a combing machine and showing theart to which the present invention belongs. The details of the combingmachine have been omitted in the present case, as the present inventionapplies only to the brush mechanism therefor, but in any event, thesebrushes are arranged usually for vertical reciprocation to load the pinswhich pass therebelow with wool .or other material to be combed.

In Fig. i, the reference numeral 10 indicates the pin holder which maybe said to be traveling in the direction of the arrow A underneath thebrush 12 which is arranged for rapid vertical reciprocation for thepurpose of applying material to be combed to the pins 14. The brush i2is mounted on a brush-holder 16 and this is mounted in turn to bereciprocated by a slide 18 appro-priateiy guided by vertical guides 2%,these guides being mounted at the interior of framework or housing 22 ofthe machine and being adjustably supported thereon in order to bestaccomplish their guiding function.

The guides 2d are provided with upright parallel cylindrical standardsor guide members 24 which are secured thereto in any desired manner andsupport at their lower ends an apron 26. The apron 26 acts to cover thelarge hole or apertures in housing 22 formed by flange 32 for extensiontherethrough of the brush legs to be described, and a lip or rim as onslide 18 seals against a splash of oil from the slide to the holes inthe apron for the brush legs. Lubricant 28 is held in the bottom portion30 of the housing 22, flange 32 forming the oil reservoir.

The slide 18 is connected to a connecting rod 34, in turn mounted on acrank as at 36, said crank having a. drive axis at 33, as represented bythe main drive shaft 40, see Fig. 2. This drive shaft may be mounted insuitable bearings and driven by a pulley 42 or other means. The slide 18is provided with vertical concave edge portions 44- (see Fig. 7), theseedge portions receiving the cylindrical standards or guides 24 andproviding for ample bearing surfaces in the reciprocation of the slide.

The crank is also provided with a connecting rod 46 for a balancingslide 48 reciprocably mounted somewhat similarly to slide 18 on rods 50held in supports 52 at right angles to the path of slide 18. Theconnecting rods 34 and 46 are on the same center and with reference tothe diagram of Fig. 17 it will be seen that this center in revolvingabout the center of shaft 40 always presents the slide 53 at a midwaypoint when the slide 18 is at (nor near) the extreme of itsreciprocatory path.

The crank 36 is provided with a pair of spaced depending legs 54 and 56to which are secured the counterbalance weights 58, and it is to benoted that the axis of the crank 36 is at with respect to thecounterbalanced weights 58, with the axis 38 of the drive shaft 40intermediate the same.

the indications on this di- Kenning to Fig agrant are as follows:

WB refers to the balance slide 48; CRS refers to the connecting rod forthe balance weight; WCRC refers to the" weight of onerod atthe'centei"of the crank; WC refers tothe unbalanced wag-st or the crank; WCRPrefers to the weight of the fed at the center of the pin; and it isbelieved that the other designations are clear. S and R are thedistances from the center of rotation of the main drive' sliaft. Inorder to provide for a complete balance of this mechanism, it has beenfound necessa y to follow the formula for complete balance:

The effect of the above d'esc'ribed mechanism resides in a very highspeed mechanical reciprocatory system which is based on the completebalance achievable in a \(8' combustion en ine; Even at high speeds, theoperatidn very smears and vibration-free, and the faster the predictionof the machine for combing the Wool or other niat'erial, and the presentmachine is able to more than double the speed of prior art machinesusing conventional brush reciprocatory mechanisms.

The slides and the connecting rods are in the same plane and thereforethere are no moments as in the case of the multi-cylinder engine withseveral cylinders in each block. Hence there remain only the inertiaforces to consider. These forces consist of primary forces acting withthe frequency of rotation, and secondary forces acting with twice thefrequency of rotation and which are produced by the angularity of theconnecting rod. The secondary forces change direction every 90 ofrotation, with the 90 displacement of the two slides, and therefore thesecondary forces of one slide are neutralized by the secondary forces ofthe other slide. When the primary inertia forces of one slide are at amaximum, those of the other slide are zero, and at the mid point or 45position as respects the travel of the slides, the inertia forces of thetwo slides are equal and their sum equals the maximum ofone slide. Atany intermediate position, the sum of the inertia forces is equal to themaximum inertia force of one slide, and the radial component of the sumof the inertia forces is a constant and is balanced by a constantcentrifugal force produced by the counterbalance weight located 180 fromthe crankpin. This is expressed in the above formula.

The brush holder 16 is provided with a pair of spaced upright members50, these being longitudinally centrally slotted (see Fig 9) andbeingreceivable in the respective tubular members 62' which are in turnmounted at the lower end of the reciprocating slide 18. The tubes may bemounted in any desired way but it is preferred to use cross-pins such asthose at 64 and oil-retaining web's as at 66.

At their lower ends, tubes 62 are provided with interior members 63which are received in the slots 70 in the members 60 as the brush holderis raised with respect to tubes 62. when the desired adjustment of theparts is achieved, a cross bolt 72 (Fig. 8) may be tightened up withrespect to its washer members '74, this bolt extending directly throughthe slots 7d and the interior supporting members 68'. This provides aquick adjustment but an extremely solid construction as is evidenced byFig; 8 showing that the members 60 although slotted are closely andsecurely held at all sides in their adjusted positions within the tubes62. v

The lubricating system includes a pump of any convenientdescriptioniridicated at 7 6. In the present case, this pump is providedwith plungers 7 8 which are simultaiieoii'sly operated by an arm 80through means of an intervening plate 82. Arm St} is the short arm of abell crank, the long arm of which is indicated at 83 and the piifot forwhich is indicated at $4 (see particularly Fig. ii); The ldlig arm 83is" substantially upright and it is provided at its upper end with'tlieroller hearing or the ciprocates vertically therewith. Guide 86 ismounted at a slight angle to the vertical, so that as slide 18reciprocates, the arm 83 has a high speed but very slight angularmotion, and this of course oscillates arm and actuates the plungers 78in order to provide for pumping the oil in thc; r sfvdil 23tl'ifdulidl'lt the system as required. The angle of guideway 86 isadjustable by means of a slot and holding screw 87. l r

This system comprises a'pa'if of lines 88 and 90 which proceed to a pairof oiling devices 92 from which the oil may be distributed over theentire machine at any point that particularly needs it. One of thesepoints is of course the crank 36 which is provided with openings 94 forcomplete lubrication thereof.

Having thus described my invention and the advantages thereof, 1 do notwish to be limited to the details herein disclosed, otherwise than asset forth in' the claims, but what I claim is:

1. Brush reciprocating mechanism for a combing machine comprising avertical guideway, a slide for recipi'ocation therecn, a brush holder onthe slide, a secondguideway inclined to the firstguideway, a slide forreciprocation on the second guideway, and means to reciprocate theslides in unison in a cycle wherein one slide is located intermediateits stroke with the other slide adjacent the end of the stroke thereof.

2. Brush reciprocating mechanism for a combing machine comprising avertical guideway, a slide for reciprocation thereon, a brush holder onthe slide, a brush, means to adjust the brush along the slide forvariation of the reciprocatory path of the brush, a second guidewayinciined to the first guideway, a slide on the second guideway, andmeans to reciprocate the slides in unison in a cycle wherein one siideis located intermediate its stroke with the other slide adjacent the endof the stroke thereof.

3. Brush reciprocating mechanism fora combingmachine comprising avertical guideway, a slide for reciprocation thereon, a brush holder onthe slide, a second guideway inclined to the first g-uideway, a slide onthe second guideway, and means to reciprocate the slides in unison in acycle wherein one slide is located intermediate its stroke with theother slide adjacent the end of; the stroke thereof, said meansincluding a crank, a drive shaft for the crank, the slides beingconnected to the crank on the same axis.

Brush reciprocating mechanism for a combing machine comprising avertical guideway, a slide for reciprocation thereon, a brush holder onthe slide, abrush, cans to adjust the brush on the slide for variationof the reciprocatory path of the brush, a second guideway inclined tothe first guideway, a slide on the second guideway, and means toreciprocate the slides in unison in a cycle wherein one slide is locatedintermediate its stroke with the other slide adjacent the end of thestroke thereof, said means including a crank, a drive shaft for thecrank, the slides being connected to the crank on the same axis.

5. Brush reciprocating mechanism for a combinginachine comprising avertical guideway, a slide for rec'ipro: cation thereon, a brush'holderon the slide, a second guideway inclined to the first guideway, aslideon the second guideway, and means to reciprocate the slides inunison in a cycle wherein one slide is located intermediate its strokewith the other slide adjacent the end of the stroke thereof, said meansincluding a crank, a drive shaft for the crank, the slides beingconnected to the crank on the same axis, and a counterweight applied tothe crank diametrically opposite the connection of the slides thereto,with respect to the drive shaft.

6. Brush reciprocating mechanism for a combing ma chine comprising apair of relatively inclined gateways,

a slide on each guide'w-ay', a brush holder on one slide,

a shaft, a crank on the shaft, a connecting rod for each slide, saidconnecting rods being connected to the crank on a single axis, so thatthe slides are out of phase as regards any instant of reciprocatorytravel thereof, and a counterweight on the crank arranged diametricallyopposite the said single axis of the connecting rods on the crank, asregards the shaft.

7. Brush reciprocating mechanism for a combing machine comprising a pairof relatively inclined guideways, a slide on each guideway, a brushholder on one slide, a shaft, a crank on the shaft, a connecting rod foreach slide, said connecting rods being connected to the crank on asingle axis, so that the slides are out of phase as regards any instantof reciprocatory travel thereof, and means to dynamically balance theslides and crank.

8. Brush reciprocating mechanism for a combing machine comprising a pairof guideways arranged at angles to each other, a slide on each guideway,a brush holder on one slide, a shaft, a crank on the shaft, a connectingrod for each slide, said connecting rods being connected to the crank ona single axis, so that the slides are out of phase as regards anyinstant of reciprocatory travel thereof, and means to dynamicallybalance the slides and crank, a guideway arranged at an angle to one ofthe firstnamed guideways and reciprocable therewith, an oil reservoir,an oil pump therein, and a pump actuator engaged in the angularlyarranged guideway and actuated thereby.

9. Brush reciprocating mechanism for a combing machine comprising a pairof guideways arranged at angles to each other, a slide on each guideway,a brush holder on one slide, a shaft, a crank on the shaft, a connectingrod for each slide, said connecting rods being connected to the crank ona single axis, so that the slides are out of phase as regards anyinstant of reciprocatory travel thereof, and means to dynamicallybalance the slides and crank, a guideway arranged at an angle to one ofthe firstnamed slides and reciprocable therewith, an oil reservoir, anoil pump therein, and a pump actuator engaged in the angularly arrangedguideway and actuated thereby, said acutator being in the form of alever.

10. The mechanism of claim 9 wherein the lever is a bell-crank, one endof which is engaged in the angularly arranged guideway and the other endof which is connected to actuate the oil pump.

11. A brush reciprocating and lubricating mechanism for a combingmachine comprising a guideway, a slide therein, a brush thereon, meansto reciprocate the slide, a second guideway arranged at a slight angleto the first guideway and located on the slide, a bell-crank having along arm engaged in the second guideway, and a lubricant pump, saidbell-crank having a short arm operable to actuate the pump.

12. A brush reciprocating and lubricating mechanism for a combingmachine comprising a guideway, a slide therein, a brush thereon, meansto reciprocate the slide, a second guideway arranged at a slight angleto the first guideway and located on the slide, a bell-crank having anarm engaged in the second guideway, and a lubricant pump, saidbell-crank having another arm operable to actuate the pump, said slidereciprocating means including a crank, and a lubricant drip devicelocated thereabove and receiving the lubricant from the pump.

13. A brush reciprocating and lubricating mechanism for a combingmachine comprising a guideway, a slide therein, a brush thereon, meansto reciprocate the slide, a second guideway arranged at a slight angleto the first guideway and located on the slide, a bell-crank having anarm engaged in the second guideway, and a lubricant pump, saidbell-crank having another arm operable to actuate the pump, said slidereciprocating means including a crank, and a lubricant drip devicelocated thereabove and receiving the lubricant from the pump, said crankbeing hollow and counterbalanced as respects the slide and receivinglubricant interiorly thereof.

References Cited in the file of this patent UNITED STATES PATENTS Re.10,930 Lund May 15, 1888 460,654 Parkin Oct. 6, 1891 471,456 Albert Mar.22, 1892 1,595,452 Cole et a1. Aug. 10, 1926 1,623,391 Burtnett Apr. 5,1927 2,138,862 Johnston Dec. 6, 1938 FOREIGN PATENTS 381,018 GreatBritain Sept. 29, 1932

